GAS LEAK

1995 Mercedes Benz S420

Tiny

toe

November, 29, 2010 AT 6:48 PM

I HAVE A S420 1995 GAS WAS LEAKING OUT OF CHORCOSL CANISTER AFTER PUTTING IN 1/2 TANK OF GAS AND ALSO CAR RUNS RUFF AFTER THAT

FOUND 575 RELATED QUESTIONS

Missing Part And Leaking Fuel

71 ANSWERS
10 IMAGES

Gas Leak

2 ANSWERS
9 IMAGES

6 Answers

Tiny

rasmataz

November, 29, 2010 AT 10:36 PM

Possibilites here could be the liquid/vapor seperator, Vapor line restrictor and purge solenoid-You need to have the evaporative control system checked out thoroughly

Tiny

toe

November, 30, 2010 AT 3:15 PM

I changed the chorcoal canister and the leak is gone but still when I put gas in it run really ruff and smells like something burning do you think it could be wire plugs cap rotor

Tiny

rasmataz

November, 30, 2010 AT 7:31 PM

When the last time you had those items replaced-too much vapor going into the engine from the charcoal canister will dilute the air and fuel mixture-check the purge/vent solenoid if its functioning properly if okay-Misfiring/Rough condition:

Engine running rough or misfiring can be cause by the following:

http://www.2carpros.com/articles/engine-misfires-or-runs-rough

Tiny

toe

December, 6, 2010 AT 8:19 PM

Changed spark plugs, wires cap rotor and still does it

Tiny

toe

December, 6, 2010 AT 8:20 PM

Changed spark plugs, wires cap rotor and still does it

Tiny

rasmataz

December, 7, 2010 AT 4:41 AM

Could be running too rich due to one of the following: 1. Excessive fuel pressure can be cause by restricted fuel return line
2. Defective Oxygen Sensors.
3. Leaking injectors and fuel pressure regulator.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.

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